1 files changed, 54 insertions, 0 deletions
diff --git a/native/src/widget/pane_grid/axis.rs b/native/src/widget/pane_grid/axis.rs
new file mode 100644
index 00000000..f0e3f362
--- /dev/null
+++ b/native/src/widget/pane_grid/axis.rs
@@ -0,0 +1,54 @@
+use crate::Rectangle;
+
+/// A fixed reference line for the measurement of coordinates.
+#[derive(Debug, Clone, Copy, Hash, PartialEq, Eq)]
+pub enum Axis {
+    /// The horizontal axis: —
+    Horizontal,
+    /// The vertical axis: |
+    Vertical,
+}
+
+impl Axis {
+    pub(super) fn split(
+        &self,
+        rectangle: &Rectangle,
+        ratio: f32,
+        halved_spacing: f32,
+    ) -> (Rectangle, Rectangle) {
+        match self {
+            Axis::Horizontal => {
+                let height_top = (rectangle.height * ratio).round();
+                let height_bottom = rectangle.height - height_top;
+
+                (
+                    Rectangle {
+                        height: height_top - halved_spacing,
+                        ..*rectangle
+                    },
+                    Rectangle {
+                        y: rectangle.y + height_top + halved_spacing,
+                        height: height_bottom - halved_spacing,
+                        ..*rectangle
+                    },
+                )
+            }
+            Axis::Vertical => {
+                let width_left = (rectangle.width * ratio).round();
+                let width_right = rectangle.width - width_left;
+
+                (
+                    Rectangle {
+                        width: width_left - halved_spacing,
+                        ..*rectangle
+                    },
+                    Rectangle {
+                        x: rectangle.x + width_left + halved_spacing,
+                        width: width_right - halved_spacing,
+                        ..*rectangle
+                    },
+                )
+            }
+        }
+    }
+}